Avaliação do efeito de fertilizantes no rendimento de diferentes variedades da cultura de quiabo-Abelmoschus esculentus-L- Moench- nas condições agro-ecológicas do vale do umbeluzi no distrito de Boane

Abstract

An experiment was conducted to evaluate the effect of fertilizers on the yield of four varieties of okra [Abelmoschus esculentus (L.) Moench]: a commercial variety (Clemson Spineless), and three varieties (Clemson Spineless), and three varieties still in the experimental stage (RVI01252, RVI01255 and RVI01525). The research was conducted during the rainy season at the Instituto de Investigação Agrária de Mozambique at the Umbeluzi Agricultural Station (IIAM-EAU). The experimental subdivided plots with fertilizers allocated in the main plots and varieties in subplots. in the main plots and the varieties in the subplots with three blocks. The treatments were the combination between fertilizers: T1: control; T2: Allwin Top fertilizer; T3: NPK fertilizer and ammonium sulfate ammonium sulfate and potassium sulfate; T4: Allwin Top fertilizer + NPK fertilizer, ammonium sulfate and potassium potassium sulfate, with the okra varieties: V1: RVI01252, V2: RVI01255, V3: RVI01525, V4: Clemson Spineless. The variables analyzed were: number of marketable number of marketable fruits, total number of fruits, weight of marketable fruits, total fruit weight fruit length, fruit diameter and total yield. There were significant differences between varieties in variables number of marketable fruits, total number of fruits, fruit length and fruit diameter, fruit length and fruit diameter. There were no significant differences among fertilizer fertilizer treatments nor was an interaction effect between fertilizers and varieties on okra yield. It is not excluded that the possibility that the lack of response of the fertilizers can be explained by the condition of soil fertility before the execution of the present experiment since it was not possible to prepare the soil analysis. The higher yield in terms of fertilizer application was obtained in the plots where fertilizer was applied with NPK, (NH4)2SO4 and K2SO4 (F3), obtaining 15.07t/ha. The variety that obtained the total yield was Clemson Spineless (V4) with 15.67t/ha. The average of the total yield of okra culture in the trial was 1,354 kg/m2 (equivalent to 13.54t/ha). (TRADUÇÃO NOSSA)